Engineered elastomeric foam materials offering superior thermodynamic performance, moisture resistance, and anti-condensation protection.
India is experiencing an unprecedented industrial expansion. Key initiatives such as clean energy transition, mega-petrochemical complexes, and chemical distribution pipelines are scaling rapidly. With the expansion of liquefied natural gas (LNG) terminals on both east and west coasts, cryogenic infrastructure has become a national engineering priority.
Thermal control in cryogenic environments requires materials that can withstand sub-zero temperature gradients down to -200°C (-328°F) without cracking or losing their structural integrity. Standard fiberglass or rock wool insulation systems face significant limitations when dealing with severe humidity, condensation, and corrosion under insulation (CUI). This is where advanced elastomeric rubber foam insulation steps in.
As a leading China Cryogenic India Supplier, Kingflex provides robust elastomeric solutions specifically tailored to the hot and humid climate zones of India. Our materials maintain a complete closed-cell matrix that eliminates water vapor ingress, ensuring decades-long thermal performance for cold storage facilities, HVAC ducts, and process gas pipelines.
An in-depth analysis of the chemical properties and insulation physics that make Kingflex rubber foam superior for cryogenic systems.
Our formulation achieves an extremely low thermal conductivity ($\lambda \le 0.035$ W/m·K at 0°C). By isolating heat transfer through conduction, convection, and radiation, the insulation keeps thermal loss to a absolute minimum.
Moisture is the primary enemy of cold insulation systems. The closed-cell structure boasts a high resistance factor ($\mu \ge 10,000$), forming a built-in vapor barrier that prevents condensation and moisture-induced degradation.
Traditional porous insulation traps moisture, leading to Corrosion Under Insulation (CUI) on steel pipes. The NBR/PVC composition prevents water accumulation and does not leach corrosive ions, saving millions in maintenance.
| Property Parameter | Standard Reference Value | Kingflex Cryogenic Grade Performance |
|---|---|---|
| Base Polymer Material | NBR/PVC Elastomeric Foam Blend | Synthesized High-Density Matrix (40-55 kg/m³) |
| Thermal Conductivity ($\lambda$) | ASTM C518 / ISO 8301 | ≤ 0.035 W/m·K at 0°C (Stabilized) |
| Service Temperature Range | Cryogenic to High Temp | -40°C to +105°C (Continuous Duty Limit) |
| Water Vapor Permeability | ASTM E96 / BS EN 12086 | μ ≥ 10,000 (Built-in Vapor Barrier) |
| Fire Safety Rating | BS 476 Part 7 / Class 1 / UL94 | Flame Retardant, Self-extinguishing off fire |
| Flexibility & Compression | ASTM C165 | Compression resilience ≥ 80% with low temperature flexibility |
Years of Industrial Insulation History
M³ Annual Production Capacity
Exporting Countries & Regions Globally
Dedicated R&D Systems Engineers
Kingflex Insulation Co., Ltd. is a premier manufacturing and trading combo for high-end thermal insulation products. Founded by the Jinwei Group—which possesses over 40 years of history since its establishment in 1979—Kingflex stands as a pioneer in energy-saving building materials. The Jinwei Group was the first manufacturer of thermal insulation materials north of the Yangtze River, paving the way for advanced modern extrusion technologies.
Currently, the Kingflex production facilities are situated in Dacheng, China, the capital of green-building materials. Our manufacturing base operates 5 large automatic assembly lines, generating an annual capacity exceeding 600,000 cubic meters. This immense production footprint makes us a trusted supply partner designated by major domestic energy and chemical ministries, as well as global engineering firms.
Our team consists of 230 highly skilled manufacturing technicians, 6 professional international sales engineers specializing in cross-border industrial compliance, and 8 dedicated research and development engineers. Together, we work towards a singular vision: supplying high-performance thermal insulation systems that contribute to global carbon reduction and engineering safety.
We believe that cold insulation in cryogenic applications leaves no margin for error. Our R&D center conducts rigorous mechanical testing at extremely low temperatures, analyzing cells structure, linear shrinkage, thermal conductivity stability, and smoke toxicity index.
Our QC laboratory tracks and records batch production, guaranteeing 100% material traceability. Every single sheet, roll, and pipe that leaves our factory gate carries a tracking batch code linked directly to our raw material inspection system.



Kingflex insulation materials are rigorously certified according to strict international standards to ensure safety and compliance in demanding markets like the US, Europe, and the Middle East. Our product lines hold the following certifications:




Our solutions have been implemented across diverse application scenarios including central air conditioning, public utility construction, petroleum, chemical, national defense, and aerospace. Key product specifications include:
Standard Dimension: Material: NBR/PVC | Thickness: 6mm - 50mm | Density: 40-55 kg/m³ | Service Temperature Range: -40℃ to 105℃.
Key Advantages: Even and full foaming structure with closed-cell rate exceeding 98%. Offers low water absorption, compression resilience over 80%, and self-extinguishing safety qualities.
Primary Applications: Air duct insulation, industrial equipment protection, process pipe cladding, wall/roof thermal protection, sub-zero cold room ceiling isolation.
Standard Dimension: Material: NBR/PVC | Thickness: 9mm - 40mm | ID (Inner Diameter): 6mm - 114mm | Density: 40-55 kg/m³ | Service Temperature Range: -40℃ to 105℃.
Key Advantages: High-precision manufacturing ensures smooth inner surfaces for tight skin contact on pipes. The low thermal conductivity factor substantially mitigates condensation and freezing risks.
Primary Applications: HVAC refrigerant lines, chilled and hot water pipelines, chemical and petrochemical process pipes, solar hot water system loops, and municipal water service protection.




Seamless execution, custom clearances, technical consulting, and robust support for Indian buyers.
Procuring large quantities of elastomeric rubber foam from China for major infrastructure projects in India requires robust logistical planning and technical coordination. Kingflex maintains a specialized business unit dedicated to the South Asian market, bridging the gap between factory production and on-site delivery.
1. Compliance & Local Bureaucracy Coordination: We ensure that all products exported to India meet the local standards where applicable, including providing documentation for customs clearances in major ports such as Mumbai (JNPT), Chennai, and Kolkata.
2. Humid Weather Configuration: The Indian subcontinent presents unique challenges: high relative humidity coupled with elevated ambient temperatures. We optimize our foam densities and formulation to maintain structural performance under extreme vapor pressures.
3. Transparent Communication & Trust: We pride ourselves on clear, direct client interaction. Our team provides fast, live-action screenshots and technical drawings during the manufacturing phase to ensure every millimeter fits your system's dimensions exactly.




Our high-performance thermal insulation solutions installed in international industrial networks and commercial installations.










Providing direct answers to essential engineering queries and material parameters.
Providing custom solutions for chemical piping networks, HVAC distribution, and low-temperature storage tanks.